femur


femur
/fee"meuhr/, n., pl. femurs, femora /fem"euhr euh/.
1. Anat. a bone in the human leg extending from the pelvis to the knee, that is the longest, largest, and strongest in the body; thighbone. See diag. under skeleton.
2. Zool. a corresponding bone of the leg or hind limb of an animal.
3. Entomol. the third segment of the leg of an insect (counting from the base), situated between the trochanter and the tibia. See diag. under coxa.
[1555-65; < L: thigh]

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also called  thighbone 
 upper bone of the leg or hind leg. The head forms a ball-and-socket joint with the hip (at the acetabulum), being held in place by a ligament (ligamentum teres femoris) within the socket and by strong surrounding ligaments. In humans the neck of the femur connects the shaft and head at a 125° angle, which is efficient for walking. A prominence of the femur at the outside top of the thigh provides attachment for the gluteus medius and minimus muscles. The shaft is somewhat convex forward and strengthened behind by a pillar of bone called the linea aspera. Two large prominences, or condyles, on either side of the lower end of the femur form the upper half of the knee joint, which is completed below by the tibia (shin) and patella (kneecap). Internally, the femur shows the development of arcs of bone called trabeculae that are efficiently arranged to transmit pressure and resist stress. Human femurs have been shown to be capable of resisting compression forces of 800–1,100 kg (1,800–2,500 pounds).

 The femur in humans is long and relatively slender or delicate; in the great apes it is shorter, more curved, and more robust. The orangutan lacks a ligamentum teres femoris, allowing for nearly complete rotary action of the lower limb but decreasing strength and stability.
 

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Universalium. 2010.

Synonyms:

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  • fémur — fémur …   Dictionnaire des rimes

  • fémur — [ femyr ] n. m. • 1541; lat. femur « cuisse » 1 ♦ Os long qui constitue le squelette de la cuisse (⇒ fémoral). Tête, col du fémur. L extrémité inférieure du fémur s articule avec l extrémité supérieure du tibia (⇒ genou) . Fracture du fémur, du… …   Encyclopédie Universelle

  • femur — FEMÚR, femururi, s.n. Os lung care formează scheletul coapsei, de la genunchi până la şold. [pl. şi: femure] – Din fr. fémur. Trimis de RACAI, 21.11.2003. Sursa: DEX 98  FEMÚR s. (anat.) (prin Munt., Olt. şi Transilv.) şodolan. Trimis de siveco …   Dicționar Român

  • fémur — m. anat. Hueso par y asimétrico del muslo, el más largo del cuerpo. Articula con el hueso ilíaco en el acetábulo y con la tibia. Está formado por una porción central diafisaria y dos extremos epifisarios; el extremo superior, o cabeza, es… …   Diccionario médico

  • FEMUR — seu FEMEN, quasi FERIMEN, quod hac maxime parte sustineatur homo, et feratur, an a femina, quod in ea parte ab illa viri sexus discrepet, Graecis unâ voce μηρος dicitur. Latini nonumquam subtilius distinguentes, Femora exteriores partes Femina… …   Hofmann J. Lexicon universale

  • Femur — (Pl. Femora) steht für: Oberschenkel, anatomisch als Ganzes Oberschenkelknochen, Os femoris, bei Wirbeltieren Femur (Gliederfüßer), Abschnitt des Beines der Gliederfüßer Diese Seite ist eine …   Deutsch Wikipedia

  • femur — 1560s, from L. femur thigh, of unknown origin; borrowed first as an architectural term, 1799 as thighbone …   Etymology dictionary

  • fêmur — s. m. 1.  [Anatomia] Osso da coxa da perna. 2.  [Zoologia] Nó superior das patas dos insetos. 3.  [Figurado] Coxa da perna.   ♦ Grafia em Portugal: fémur …   Dicionário da Língua Portuguesa

  • fémur — s. m. 1.  [Anatomia] Osso da coxa da perna. 2.  [Zoologia] Nó superior das patas dos insetos. 3.  [Figurado] Coxa da perna.   ♦ Grafia no Brasil: fêmur …   Dicionário da Língua Portuguesa

  • fémur — sustantivo masculino 1. Área: anatomía Hueso del muslo: El ciclista sufrió una fractura de fémur …   Diccionario Salamanca de la Lengua Española

  • fémur — (Del lat. femur). 1. m. Hueso del muslo, que se articula por uno de sus extremos con el coxis y por el otro con la tibia y el peroné. 2. Zool. Artejo de las patas de los insectos, articulado por uno de sus extremos con el trocánter y por el otro… …   Diccionario de la lengua española


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